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I am learning Electromagnetic Induction in school and I have this question. For a straight conductor with length l and velocity v, that cuts through a uniform field, it can be seen that an emf is induced and this emf can be calculated using the equation E = Blv.

However, I would like to know what happens as the length of the conductor is increased. Through he equation, I can see that the emf increases but is there a more precise answer/ way of explaining it?

Many thanks in advance. (: